Definition: In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.
Input: ['v', 'd', 'I', '9085', 'Y', '5821', '1099']

22, 4, 9, 9085, 25, 5821, 1099